21379080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1093}}^1$

素因数の和:1270

約数の個数: 64

約数和(自身を含む): 64589760

約数和(自身を除く): 43210680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 978, 1093, 1304, 1630, 1956, 2186, 2445, 3260, 3279, 3912, 4372, 4890, 5465, 6520, 6558, 8744, 9780, 10930, 13116, 16395, 19560, 21860, 26232, 32790, 43720, 65580, 131160, 178159, 356318, 534477, 712636, 890795, 1068954, 1425272, 1781590, 2137908, 2672385, 3563180, 4275816, 5344770, 7126360, 10689540, 21379080]

約数ペア:

[(1, 21379080), (2, 10689540), (3, 7126360), (4, 5344770), (5, 4275816), (6, 3563180), (8, 2672385), (10, 2137908), (12, 1781590), (15, 1425272), (20, 1068954), (24, 890795), (30, 712636), (40, 534477), (60, 356318), (120, 178159), (163, 131160), (326, 65580), (489, 43720), (652, 32790), (815, 26232), (978, 21860), (1093, 19560), (1304, 16395), (1630, 13116), (1956, 10930), (2186, 9780), (2445, 8744), (3260, 6558), (3279, 6520), (3912, 5465), (4372, 4890)]